​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  background(0);

  translate(width/2,height/2);

  stroke(255);

  strokeWeight(3);

  rotate(radians(angle / 3))

  for(let i=0; i<280; i+=10) {

    push();

    rotate(radians(i) * cos(radians(angle)));

    line(200 * sin(radians(angle)), 0, 0, 200);

    pop();

  }

  angle+=1

}